Insulator.



No. 869,873. PATBNTED NOV. 5., 1907. D. M. BASS.

INSULATOR. nrLloATIoN rILnnJUnn 11. 19m.

EIE E-` DUNCAN M. BASS, OF FACKLER, ALABAMA.

INSULATOR.

Specification of Letters Patent.

Patented Nov. 5, 1907.

Application filed June 171 1907. Serial No. 379.481.

To all whom 'it may concern:

Be it known that 1, DUNCAN M. BASS, a citizen of the United States, residing at Fackler, in the county of Jackson and State of Alabama, have invented new and useful Improvements in Insulators, of which the following is a specification..

This invention relates to certain new and useful improvements in insulators for holding telegraph and telephone wires, and it has for its objects among others to provide a simple and cheap form of insulator by which the wires may be securely held, and which will permit of the wires being easily put in place or removed when desired.

Other objects and advantages of the invention will hereinafter appear and the novel features thereof will be specifically defined by the appended claims.

The invention is clearly illustrated in the accompanying drawings, which, with the numerals of reference marked thereon, form a part of this specification, and in which Figure 1 is an elevation showing the improved insulator aixed to a support. Fig. 2 is a vertical section through the saine on the line 2f2 of Fig. 1. Fig. 3 is a cross section, taken on the line 3-3 of Fig. 1. Fig. 4 is a top plan with the cap removed.

Like numeralsof reference indicate like parts throughout the several views.

Referring to the drawings 1 designates the body portion which may be of wood, preferably of cylindrical form as shown, and provided at one end with an opening a screw threaded to receive the threaded stud or member 2 on the cross arm 3, which latter is designed to be supported in position upon a telegraph pole or other device in any suitable manner. This body portion or bracket is provided at the other end with screw threads as seen at 4 to receive a cap soon to be described, and this end is provided with longitudinal slits 5 which extend into the open portions 6 in the wall of the bracket or body portion.

The bottom wall '7 of the bracket or body portion is designed to receive and support the glass member 8 the upper end of which is concaved as seen at 9 in Fig. 2 and the upper face is formed with a groove l() into which the wire is designed to rest.

1l is the upper portion, preferably of glass, the lower end of which is convex as seen at 12 to conform to the concave face of the bottom member 8, and also formed with the groove 13 into which the wire is designed to be received. The upper end of the member 11 is formed with a polygonal portion 14 to receive a wrench or other implement for removing it if necessary.

15 is the cap; it is provided with a depending interiorly screw threaded flange 16 to engage the threads on the end of the body portion or bracket as seen clearly in Fig. 2, and its outer face is provided with a polygonal portion 17 to receive a wrench or other implement by which it may be screwed or unscrewed when desired.

The mode of use will be apparent. The bracket being secured in position, the cap is removed and the upper member 11 is taken out, when the wire can be inserted through the proper slits in the end of the bracket till it drops into the groove in the upper face of the lower member 8, the upper member 11 is then dropped into place when its lower convex face will be received in the concave upper end of the lower niember and the groove in the lower face of the said upper member will be engaged over the Wire which is seated in the groove 10 and then the cap is put in place and screwed down, which not only forces the upper member 11 down upon the lower member, but closes the slits in the wall of the bracket or body portieri so that the wire cannot move or work upward and thus the wire will bt firmly held in place and cannot become accidentally displaced. The upper and lower members within the bracket are easily movable so they may be turned to bring the wire through any desired slits7 the upper and lower members being turned so that their coincident grooves will be in alinement with two opposite grooves of the bracket, as will be readily understood.

Modifications in detail may be resorted to without departing from the spirit of the invention or sacrificing any of its advantages.

What is claimed as new is 1. An insulator comprising a slitted bracket, wire-holding means therein, between which the wire is held, and means for closing the end of the bracket and compressing the slitted portion thereof.

2. An insulator comprising a bracket with longitudinal slits, wire-holding means within the bracket, and a cap for closing the end of the bracket and closing the slits.

An insulator, comprising a bracket slitted longitudinally, removable wire-holding members therein having grooves upon their adjacent faces, and means adjustable over the end of said bracket for retaining said members and closing the slits.

4. An insulator comprising a bracket with longitudinal slits and open spaces into which the slits extend, wireholdingl members in said bracket. and a cap for closing the end of the bracket and restricting the slits.

An insulator comprising a bracket with longitudinal slits at one end and open spaces into which the slits extend, wireholdiugl members in said bracket and having grooves upon their adjacent faces, one end of the bracket being screw thrcuded, and a cap having a threaded flange engaging the threads of the bracket.

6. The insulator described consisting of a bracket with longitudinal slits at one end and exterior threads at said end, and open spaces into which the slits extend, wireholding members in said bracket having convex and concave abutting ends with coincident grooves, and a screw threaded cap engaging the threaded end of the bracket.

DUNCAN M. BASS. 

